EP 2146891 A1 20100127 - Hydraulically driven light vehicle and pressure conversion unit in particular for use in such a vehicle
Title (en)
Hydraulically driven light vehicle and pressure conversion unit in particular for use in such a vehicle
Title (de)
Hydraulisch antreibbares Leichtfahrzeug und Druckumsetzungseinrichtung insbesondere zum Einsatz in einem solchen Fahrzeug
Title (fr)
Véhicle léger à propulsion hydraulique et convertisseur de pression en particulier pour une utilisation sur ce même véhicle
Publication
Application
Priority
- EP 2008054811 W 20080421
- DE 102007020297 A 20070420
Abstract (en)
[origin: WO2008129037A1] A light vehicle for the transport of at least two persons which is driven by muscular power has a hydraulic power train which comprises motors (11/1 - 11/4) and a pump device as hydraulic energy source which comprises hydraulic pumps individually assigned to the passengers and activated by the passengers. By means of the pump device, a pressure accumulator (21) of a pressure supply unit (12) can be charged, and hydraulic energy for driving control of the hydraulic motors (11/1 - 11/4) can be drawn therefrom. The drive motors (11/1-11/4) work as pumps in a brake operating mode, which is useful for recuperation, and the pumps feed a conversion device (30) which has a hydraulic drive device (37) which in turn drives a pump device (38) which is designed with a high starting pressure level and which works as a charging pump attachable to the accumulator (21).
IPC 8 full level
B62M 19/00 (2006.01)
CPC (source: EP)
B62M 19/00 (2013.01); F04B 13/02 (2013.01)
Citation (search report)
See references of WO 2008129037A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2008129037 A1 20081030; AT E498541 T1 20110315; DE 102008019993 A1 20081106; DE 502008002616 D1 20110331; EP 2146891 A1 20100127; EP 2146891 B1 20110216
DOCDB simple family (application)
EP 2008054811 W 20080421; AT 08749631 T 20080421; DE 102008019993 A 20080421; DE 502008002616 T 20080421; EP 08749631 A 20080421